GEO DataSets

(Submitter supplied) Compared to freshwater ecosystems, the health status of estuarine waters remains little studied despite their importance for many species. They also represent a zone of interest for Human settlements that make them the final sink of pollution in both the water column and sediment. Once in sediments, pollutants could represent a threat to benthic as well as pelagic estuarine species through resuspension events. more...

Organism:

Eurytemora affinis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30085

15 Samples

Download data: TSV

(Submitter supplied) Circular RNAs (circRNAs) have gained significant attention in recent years due to their diverse biological functions and potential as novel therapeutic modality. Two general mechanisms for generating circRNAs involves the utilization of group 1 and group 2 introns, which are self-splicing ribozymes found in many organisms. Although group 1 intron has been demonstrated to be highly effective in circularization, the reaction requires high temperature plus cofactors such as GTP. more...

Organism:

Gaussia princeps (Scott, 1894)

Type:

Other

Platform:

GPL33866

6 Samples

Download data: TXT

(Submitter supplied) Chemical contamination is a common threat to biota thriving in estuarine and coastal ecosystems. In particular, trace metals tend to accumulate and exert deleterious effects on small invertebrates such as zooplankton, which are essential trophic links between phytoplankton and higher-level consumers in aquatic food webs. Beyond the direct effects of the contamination, we hypothesized that metal exposure could also affect the zooplankton microbiota, which in turn might further impair host fitness. more...

Organism:

Eurytemora affinis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30085

12 Samples

Download data: TXT

(Submitter supplied) Copepods from the species Acartia tonsa, like other 41 members of Calanoida order, have the unique ability to induce quiescence in different stages during their lifetime if adverse environmental conditions occur. Here I assembled a de novo transcriptome for subitaneous and quiescent embryonic development to reconstruct the molecular processes occurring in the embryogenesis. This dataset provides a better understanding of A. more...

Organism:

Acartia tonsa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL32548

26 Samples

Download data: FASTA, MATRIX

(Submitter supplied) Analysis of the genes differentially expressed by male and female copepods, i.e. "sex-biased" genes; with an interest in sex-determination, sex-development, sex-differentiation, and the differentially expressed pathways.

Organism:

Eurytemora affinis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21315

4 Samples

Download data: FA, TXT

(Submitter supplied) Copepods are zooplanktonic crustaceans ubiquitously widespread in aquatic systems. They are of ecological importance due to their place in the trophic chain. Copepods are exposed to a wide variety of pollutants as insect growth regulators (IGR) acting as endocrine disruptors although they are not the target. The aim of the present work was to investigate the molecular response of a non-targeted organism, the copepod Eurytemora affinis, to an IGR. more...

Organism:

Eurytemora affinis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL30085

18 Samples

Download data: TXT

(Submitter supplied) Populations that tolerate extreme environmental conditions with frequent fluctuations can give valuable insights into physiological limits and adaptation. In some estuarine and marine ecosystems, organisms must adapt to extreme and fluctuating salinities, but not much is known how varying salinities impact local adaptation across a wide geographic range. We used eight geographically and genetically divergent populations of the intertidal copepod Tigriopus californicus to test if northern populations have greater tolerance to low salinity stresses, as they experience greater precipitation and less evaporation. more...

Organism:

Tigriopus californicus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21784

12 Samples

Download data: FA, FASTA, XLSX

(Submitter supplied) This study investigates the transcriptomic responses of salmon lice (L. salmonis) infecting salmon treated with emamectin benzoate (either 1x or 3x), ivermectin, or commercial feed controls

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

48 Samples

Download data: TXT

(Submitter supplied) Our manuscript aimed to use RNA sequencing technology to study the transcriptomics responses and mechanisms of this species to temperature fluctuations. We focused on both a short term and a more sustained exposure to heat stress. We report significant effects of temperature on the gene expression of Temora.

Organism:

Temora longicornis

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25158

12 Samples

Download data: FASTA, TXT

(Submitter supplied) This study investigates the transcriptomic responses of salmon lice (L. salmonis) to five concentrations (30, 300, 700, 1000, and 1500 ppb) of lufenuron (Elanco Animal Health)

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

21 Samples

Download data: TXT

(Submitter supplied) This study investigates transcriptomic responses of Pacific salmon lice, Lepeophtheirus salmonis, to infection with the microsporidian Facilispora margolisi and/or exposure to emamectin benzoate (EMB), an antiparasitic agent commonly used in salmon aquaculture.

Organism:

Lepeophtheirus salmonis; Lepeophtheirus salmonis oncorhynchi

Type:

Expression profiling by array

Platform:

GPL15566

28 Samples

Download data: TXT

(Submitter supplied) We investigate the effect of a functional feed for immunostimulation (peptidoglycan extract from bacterial cell wall with nucleotide formulation) on L. salmonis infection levels on Atlantic salmon Salmo salar, and on host and parasite gene expression profiles. Atlantic salmon smolts (~95 g) were fed a control diet, or a low or high dose immunostimulant diet, and then exposed to L. salmonis copepodids in three subsequent exposures. more...

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

11 Samples

Download data: TXT

(Submitter supplied) This study investigates host-specific gene expression of the Pacific salmon lice, Lepeophtheirus salmonis oncorhynchii, while parasitizing a resistant host (Coho salmon), two susceptible hosts (Atlantic salmon, Sockeye salmon), and a population with-held hosts (starved), over 48 hrs.

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

84 Samples

Download data: TXT

(Submitter supplied) This study investigates transcriptomic responses of Atlantic salmon lice, Lepeophtheirus salmonis exposed to cypermethrin, a commonly used antiparasitic agent used in aquaculture. Copepodid L. salmonis were exposed to cypermethrin (Betamax®) at a concentration of 1.0ppb

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

12 Samples

Download data: TXT

(Submitter supplied) This study aimed at measuring transcriptome-wide gene expression in four populations of the copepod T. californicus. Populations were exposed to two different thermal regime, a variable 20-28 degree and a constant 20 degree followed by a one-time stress at 28 degrees. RNA was extracted at 20 and 28 degrees for all populations from all thermal regimes. Transcriptome-wide gene expression was measured, and differentially expressed genes were determined for all populations for the different temperature combinations. more...

Organism:

Tigriopus californicus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19353 GPL21784

32 Samples

Download data: FASTA, TXT

(Submitter supplied) This study investigates sex-biased gene expression between populations of Atlantic and Pacific salmon lice, Lepeophtheirus salmonis. Two Atlantic L. salmonis populations were previously used for an array study (GSE56024) while a third dataset using Pacific L. salmonis was novel. Using all three populations, a consensus-based, meta-analysis approach was used to identify sex-biased and sex-specific genes.

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

40 Samples

Download data: TXT

(Submitter supplied) The formation of new species is often a consequence of genetic incompatibilities accumulated between populations during allopatric divergence. When divergent taxa interbreed, these incompatibilities impact physiology and have a direct cost resulting in reduced hybrid fitness. Recent surveys of gene regulation in interspecific hybrids have revealed anomalous expression across large proportions of the genome, with 30-70% of all genes apparently misexpressed, mostly in the direction of down-regulation. more...

Organism:

Tigriopus californicus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19353 GPL15675

9 Samples

Download data: TXT

(Submitter supplied) This study investigates the baseline or inducible differences in between populations of Atlantic salmon lice Lepeophtheirus salmonis with differing levels of resistance to the parasiticidal drug emamectin benzoate (EMB), as well as the induced effects of EMB exposure to Pacific salmon lice. F1 generation lice were exposed in bioassays to a dilution series of emamectin benzoate.

Organism:

Lepeophtheirus salmonis

Type:

Expression profiling by array

Platform:

GPL15566

95 Samples

Download data: TXT

(Submitter supplied) RNA-seq expression data from 6 libraries in Caligus rogercresseyi

Organism:

Caligus rogercresseyi

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18563

6 Samples

Download data: TXT

(Submitter supplied) The marine copepod Calanus finmarchicus is the most abundant zooplankton species in the northern regions of the Atlantic Ocean and the Barents Sea. Very little is known about the molecular mechanisms underlying critical processes associated with this species’ complex life history (e.g., ontogenetic development, reproduction, molting, diapause) and physiology (e.g., digestion, neural processes, and membrane physiology). more...

Organism:

Calanus finmarchicus

Type:

Expression profiling by array

Platform:

GPL14742

10 Samples

Download data: GPR